In situ and in vitro breakage of lampbrush chromosomes by x-radiation.
D000818:Animals; D002869:Chromosome Aberrations / Q000209:etiology*; D025063:Chromosome Disorders; D003851:Deoxyribonucleases / Q000494:pharmacology; D005260:Female; D066298:In Vitro Techniques; D008858:Microscopy, Phase-Contrast; D010063:Ovum; D010434:Pepsin A / Q000494:pharmacology; D011831:Radiation Genetics; D014562:Caudata
D003851:Deoxyribonucleases; D010434:Pepsin A